NAICS 333131 — Mining Machinery and Equipment Manufacturing: federal contracts

0 open federal contract opportunities classified under NAICS 333131 (Mining Machinery and Equipment Manufacturing) on SAM.gov, refreshed nightly.

Open solicitations

No open solicitations carry this NAICS code right now.

Who buys NAICS 333131

Who wins NAICS 333131 work

Who counts as small under this code

SBA size standard for NAICS 333131: 900 employees.

Each solicitation carries exactly one NAICS code, and that code — not a related one in the same family — decides who counts as small.

One code, chosen by the contracting officer, decides who counts as small. A related code in the same family does not qualify you, and the assignment itself can be appealed to SBA OHA.

Source: FAR 19.102, current as of 07 August 2026 · eCFR.

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